Rim breaker



Feb 2S, w28.,

Lm W. J. FARMER RIM BREAKER Filed Jan. 22, 1927 ff-zfuentar Patented Feb. as, 192s. l

*Unirse srArfEs WILLIAM J'. FARMER, or WIRT, OKLAHOMA. i

RIM BREAKER.

Application filed January 22,V 1927. VSerial Ill-0,162,866. i

The present invention relates to an auto-` mobile tire rim tool and has for its principal object to provide a device ot'this nature which is useful in expanding and contract ing automobile tire rims in'taking oit ,and putting on tires, an operation which iswell known in this art. i

Another' very important object of the invention lies in the provision .of a tool of this nature which is comparatively simple in its construction, ;inexpensive to manufacture, strong and durable,thoroughly eiicient and reliable in operation, easy to manipulate, and otherwise well adapted to the purpose for Which it isdesigned.,

With `the above and numerous other ob-y jects in view as will appear as the description proceeds, the invention resides in certainl novel features of construction, and in the combination and arrangement of parts as Will be hereinafter more` fully described and claimed.

In the drawing r-f l Figure 1 is a sectional elevation of the tool embodying the features of my invention,

Fig. 2 is an elevation of one end thereof showing an attachment thereon,

Fig. 3 is a detail section taken substan tially on the line 3-3 of Fig. 2,

Fig. le is a detailed section taken substanj detail 1t will be seen that the numeral 23 ti'allyon the line 4 4 of Fig. 2. 1

Referring to the drawing in detail it will be seen that the numeralr 5 denotes an velongated hollow tubular member which is provided intermediate its ends with diametrically opposed longitudinally extending slots 6. A coupling 7 is threaded on Vone end ofthe hollow tubular member 5 and threadedly receives a shank 8 having a bifurcated end 9 with a pin 10 piercing the same so that the shank may be engaged with a lug on the tire rim, the urcations of the'end 9 straddling the lug and the pin 10 piercing the opening in the lug.L It will thus be seen that the shank 8 may be adjusted in relation to the member 5.

Anl elongated shank 11 is slidable through ,the other end of the hollow tubular member 5 and this is provided intermediate its ends with a longitudinally extending slot 12 adapted to register with the slots 6. Rollers 13 and 14e are journaled in spaced relationship in the slot 12. The outer end of ltheelongated shank 11 is bifurcated as is indicated at 15 and the urcations thereof are piercedby pins 16 so that this end may be engaged with thetire rim lug in the same manner asthe bifurcated end 9 as previouslyrindicated. v`Lugsl? project from the hollow tubular member 5adjacent one end of one of the slots 6, one lug ,von each .side of said slot so as to pivotally receive therebetween as at 18 a lever 1 9-the pivoted end of which is curved as is `indicated at 20 to form a cam portion. rThe lever. extends throughy the slots Gand 12 and the Campore tion 20 is adapted to engage with the rollers 13 and 14 so vthat astthe lever is swung-back and forth it will'alternately engage the'rollers A13 and Mito telescope the shank-11 into the member 5 or out .ofthe member 5` Aas may beydesired for contracting or expanding the rim,vrespectively. Then the parts are locatedV as Fig. 1 lit will be seen that the operator'may release the handle 19Y and Vtherim willstay expanded and when the 'le-v'` the roller 13the rinimay be contracted and Y when the notch. 21 engages the Aroller 13 'the rim may Ybe .held in acontracted position without any further effort on the part of the operator. Y j

If desired on one or both of the' ends of the tool justjdescribed there-may be placed an attachment such as is disclosedin Figs. 2 to l inclusive. Referring to this attachment in vberV 26 is mounted transversely on the shank 23 and slidably receives a rack member 27.' i

rFhe outer ends of the rack member 27 and the tubular member 26 are bifurcated as is shown in Fig. 4 for receiving jaws 28 whichy are notched as .at 29 and keys 30 extend through openings in the b ifurcated ends of the' members 2G and 27 to engage in the notches 29 to hold the jaws 28 in different adjusted positions.V These jaws 28 adapted to engage over the edges or flanges of the rim as will be apparent. Therack member 27 is adjustable in relation to the tubular member 26 as will be apparent and a pivoted pawl 31 is mounted by means ofpins are y 32 on the shank 23 to engage between theV teeth of the ratchet member 2 7 to hold it in.v

adjusted position in relation; to the member tion, andadvantages of this invention will now be quite apparent to those skilled in this art Vwithout a more detailed description thereof. The present embodiment of the invention has been disclosed in detail merely by way of example since in actual practice it attains the features enumerated as desirable rinthe statement of the invention and the l Y above description.

' extending through the slots, rollers j orurnaled in spaced relation in the slot of the shank to be engaged bythe lever for sliding the shank in the tubular member.

2. A rim breaker comprising, in combination, a'tubular member of hollow construction `having diametri'eally' opposed l0ngitudi.

I nally extendingfslots, an adjustable shank engaging means on'the outer ends of the Y engaged on one end of the tubular member,

` an' elongated shank slidable in the other end Y of the tubular member and provided with a longitudinally extending slot registrable with the slots' of the tubular member, rimshanks, a lever, means* pivoting onev end ol the lever on the tubular.l member, said lever extending through Vthe slots, means dlsposed in spaced relation within the slot of the secn ond shank with which the lever engages.

A rim breaker comprising a shank, a

rtubular member on the shank, a rack bar slidable inthe tubular member, mea-ns for holding the rack bar in diiferent adjusted positions in relation to the'tubular member,

the outer end of the tubular member and the outer end of the shank being bifurcated, jawsr receivable between the urcations of the bifurcated ends, keys passing through openings in the furcations of the bifurcated ends, said jaws being provided with notches to receive the keys so that the jaws may be held in dillerent adjusted positions'. j f

4. In combination, a rim expanding tool and an attachment, said attachment comprising a shank, means for engaging the shank with the tool, a tubular `member disposed transversely on the shank, ay rack bar slidable in the tubular member, means for holding the rack bar Iin different adjusted positions in relation to the tubular member, a jaw' adj ustably mounted on the end of the tubular member, a second jaw adjustably mounted on the end of the rack bar. In testimony whereof I affix my signature'.l

WILLIAM J. FARMER; 

